AngularAzElBuilder.java
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* CS licenses this file to You under the Apache License, Version 2.0
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.orekit.estimation.measurements.generation;
import org.hipparchus.random.CorrelatedRandomVectorGenerator;
import org.orekit.estimation.measurements.AngularAzEl;
import org.orekit.estimation.measurements.GroundStation;
import org.orekit.estimation.measurements.ObservableSatellite;
import org.orekit.propagation.sampling.OrekitStepInterpolator;
import org.orekit.time.AbsoluteDate;
import java.util.Map;
/** Builder for {@link AngularAzEl} measurements.
* @author Luc Maisonobe
* @since 9.3
*/
public class AngularAzElBuilder extends AbstractMeasurementBuilder<AngularAzEl> {
/** Zero value for initial dummy measurement. */
private static final double[] ZERO = { 0.0, 0.0 };
/** Ground station from which measurement is performed. */
private final GroundStation station;
/** Simple constructor.
* @param noiseSource noise source, may be null for generating perfect measurements
* @param station ground station from which measurement is performed
* @param sigma theoretical standard deviation
* @param baseWeight base weight
* @param satellite satellite related to this builder
*/
public AngularAzElBuilder(final CorrelatedRandomVectorGenerator noiseSource,
final GroundStation station,
final double[] sigma, final double[] baseWeight,
final ObservableSatellite satellite) {
super(noiseSource, sigma, baseWeight, satellite);
this.station = station;
}
/** {@inheritDoc} */
@Override
protected AngularAzEl buildObserved(final AbsoluteDate date,
final Map<ObservableSatellite, OrekitStepInterpolator> interpolators) {
return new AngularAzEl(station, date, ZERO,
getTheoreticalStandardDeviation(),
getBaseWeight(), getSatellites()[0]);
}
}